./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_530f7068-8bf3-4501-9d44-9c5964a9c496/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_530f7068-8bf3-4501-9d44-9c5964a9c496/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_530f7068-8bf3-4501-9d44-9c5964a9c496/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_530f7068-8bf3-4501-9d44-9c5964a9c496/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_530f7068-8bf3-4501-9d44-9c5964a9c496/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_530f7068-8bf3-4501-9d44-9c5964a9c496/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc4bd2595a0b7e3cefae13519551d835632d9ce9 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:09:33,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:09:33,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:09:33,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:09:33,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:09:33,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:09:33,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:09:33,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:09:33,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:09:33,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:09:33,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:09:33,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:09:33,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:09:33,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:09:33,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:09:33,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:09:33,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:09:33,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:09:33,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:09:33,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:09:33,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:09:33,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:09:33,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:09:33,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:09:33,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:09:33,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:09:33,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:09:33,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:09:33,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:09:33,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:09:33,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:09:33,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:09:33,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:09:33,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:09:33,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:09:33,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:09:33,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:09:33,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:09:33,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:09:33,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:09:33,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:09:33,411 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_530f7068-8bf3-4501-9d44-9c5964a9c496/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 12:09:33,422 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:09:33,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:09:33,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:09:33,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:09:33,423 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:09:33,423 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 12:09:33,423 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 12:09:33,423 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 12:09:33,423 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 12:09:33,423 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 12:09:33,424 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 12:09:33,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:09:33,424 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:09:33,424 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 12:09:33,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:09:33,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:09:33,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:09:33,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 12:09:33,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 12:09:33,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 12:09:33,425 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:09:33,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:09:33,425 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 12:09:33,425 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:09:33,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 12:09:33,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:09:33,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:09:33,426 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 12:09:33,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:09:33,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:09:33,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:09:33,426 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 12:09:33,427 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 12:09:33,427 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_530f7068-8bf3-4501-9d44-9c5964a9c496/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4bd2595a0b7e3cefae13519551d835632d9ce9 [2019-12-07 12:09:33,529 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:09:33,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:09:33,542 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:09:33,544 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:09:33,544 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:09:33,544 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_530f7068-8bf3-4501-9d44-9c5964a9c496/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2019-12-07 12:09:33,592 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_530f7068-8bf3-4501-9d44-9c5964a9c496/bin/uautomizer/data/ec8743a0b/8e1359214b1d4681a172295b97fe9ebc/FLAG072541a8a [2019-12-07 12:09:34,003 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:09:34,004 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_530f7068-8bf3-4501-9d44-9c5964a9c496/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2019-12-07 12:09:34,014 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_530f7068-8bf3-4501-9d44-9c5964a9c496/bin/uautomizer/data/ec8743a0b/8e1359214b1d4681a172295b97fe9ebc/FLAG072541a8a [2019-12-07 12:09:34,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_530f7068-8bf3-4501-9d44-9c5964a9c496/bin/uautomizer/data/ec8743a0b/8e1359214b1d4681a172295b97fe9ebc [2019-12-07 12:09:34,371 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:09:34,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:09:34,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:09:34,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:09:34,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:09:34,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:09:34" (1/1) ... [2019-12-07 12:09:34,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a368b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:09:34, skipping insertion in model container [2019-12-07 12:09:34,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:09:34" (1/1) ... [2019-12-07 12:09:34,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:09:34,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:09:34,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:09:34,643 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:09:34,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:09:34,716 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:09:34,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:09:34 WrapperNode [2019-12-07 12:09:34,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:09:34,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:09:34,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:09:34,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:09:34,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:09:34" (1/1) ... [2019-12-07 12:09:34,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:09:34" (1/1) ... [2019-12-07 12:09:34,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:09:34,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:09:34,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:09:34,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:09:34,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:09:34" (1/1) ... [2019-12-07 12:09:34,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:09:34" (1/1) ... [2019-12-07 12:09:34,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:09:34" (1/1) ... [2019-12-07 12:09:34,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:09:34" (1/1) ... [2019-12-07 12:09:34,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:09:34" (1/1) ... [2019-12-07 12:09:34,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:09:34" (1/1) ... [2019-12-07 12:09:34,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:09:34" (1/1) ... [2019-12-07 12:09:34,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:09:34,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:09:34,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:09:34,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:09:34,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:09:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_530f7068-8bf3-4501-9d44-9c5964a9c496/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 12:09:34,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:09:34,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 12:09:34,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:09:34,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:09:35,450 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:09:35,450 INFO L287 CfgBuilder]: Removed 358 assume(true) statements. [2019-12-07 12:09:35,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:09:35 BoogieIcfgContainer [2019-12-07 12:09:35,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:09:35,451 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 12:09:35,451 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 12:09:35,454 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 12:09:35,454 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:09:35,454 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 12:09:34" (1/3) ... [2019-12-07 12:09:35,455 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36796cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:09:35, skipping insertion in model container [2019-12-07 12:09:35,455 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:09:35,455 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:09:34" (2/3) ... [2019-12-07 12:09:35,455 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36796cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 12:09:35, skipping insertion in model container [2019-12-07 12:09:35,456 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 12:09:35,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:09:35" (3/3) ... [2019-12-07 12:09:35,457 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2019-12-07 12:09:35,485 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 12:09:35,486 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 12:09:35,486 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 12:09:35,486 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:09:35,486 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:09:35,486 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 12:09:35,486 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:09:35,486 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 12:09:35,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 230 states. [2019-12-07 12:09:35,524 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2019-12-07 12:09:35,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:09:35,524 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:09:35,530 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 12:09:35,530 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:09:35,530 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 12:09:35,530 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 230 states. [2019-12-07 12:09:35,538 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2019-12-07 12:09:35,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:09:35,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:09:35,539 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 12:09:35,539 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:09:35,543 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(77, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(101, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(116, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(104, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string34.base, #t~string34.offset, 1);call write~init~int(82, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(73, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(84, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 4 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(75, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 12#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 149#L166true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 52#L174true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 46#L130true assume 0 != main_~tmp~0; 13#L103true havoc test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 176#L639-1true [2019-12-07 12:09:35,543 INFO L796 eck$LassoCheckResult]: Loop: 176#L639-1true assume !false; 19#L455true assume test_~splverifierCounter~0 < 4; 128#L456true test_~tmp~7 := test_#t~nondet25;havoc test_#t~nondet25; 141#L464true assume !(0 != test_~tmp~7); 142#L464-1true test_~tmp___0~2 := test_#t~nondet26;havoc test_#t~nondet26; 185#L474true assume !(0 != test_~tmp___0~2); 168#L474-1true test_~tmp___2~0 := test_#t~nondet27;havoc test_#t~nondet27; 104#L484true assume 0 != test_~tmp___2~0; 63#L490-1true assume !(0 != ~pumpRunning~0); 54#L196true assume !(0 != ~systemActive~0); 129#L203true havoc __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_#t~ret40, __utac_acc__Specification3_spec__1_#t~ret41, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 137#L555-5true __utac_acc__Specification3_spec__1_#t~ret39 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret39;havoc __utac_acc__Specification3_spec__1_#t~ret39; 79#L633true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 176#L639-1true [2019-12-07 12:09:35,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:09:35,547 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-12-07 12:09:35,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:09:35,553 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719640867] [2019-12-07 12:09:35,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:09:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:35,750 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:09:35,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:09:35,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1666538050, now seen corresponding path program 1 times [2019-12-07 12:09:35,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:09:35,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649954373] [2019-12-07 12:09:35,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:09:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:35,762 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:09:35,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:09:35,763 INFO L82 PathProgramCache]: Analyzing trace with hash 47740888, now seen corresponding path program 1 times [2019-12-07 12:09:35,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:09:35,763 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459059096] [2019-12-07 12:09:35,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:09:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:09:35,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:09:35,848 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459059096] [2019-12-07 12:09:35,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:09:35,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 12:09:35,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96310765] [2019-12-07 12:09:35,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:09:35,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 12:09:35,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 12:09:35,921 INFO L87 Difference]: Start difference. First operand 230 states. Second operand 6 states. [2019-12-07 12:09:36,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:09:36,098 INFO L93 Difference]: Finished difference Result 510 states and 741 transitions. [2019-12-07 12:09:36,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 12:09:36,101 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 510 states and 741 transitions. [2019-12-07 12:09:36,110 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 333 [2019-12-07 12:09:36,120 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 510 states to 489 states and 720 transitions. [2019-12-07 12:09:36,121 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 489 [2019-12-07 12:09:36,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 489 [2019-12-07 12:09:36,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 489 states and 720 transitions. [2019-12-07 12:09:36,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:09:36,127 INFO L688 BuchiCegarLoop]: Abstraction has 489 states and 720 transitions. [2019-12-07 12:09:36,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states and 720 transitions. [2019-12-07 12:09:36,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 270. [2019-12-07 12:09:36,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2019-12-07 12:09:36,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 396 transitions. [2019-12-07 12:09:36,166 INFO L711 BuchiCegarLoop]: Abstraction has 270 states and 396 transitions. [2019-12-07 12:09:36,167 INFO L591 BuchiCegarLoop]: Abstraction has 270 states and 396 transitions. [2019-12-07 12:09:36,167 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 12:09:36,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 270 states and 396 transitions. [2019-12-07 12:09:36,168 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 184 [2019-12-07 12:09:36,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:09:36,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:09:36,169 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 12:09:36,169 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:09:36,170 INFO L794 eck$LassoCheckResult]: Stem: 905#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(77, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(101, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(116, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(104, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string34.base, #t~string34.offset, 1);call write~init~int(82, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(73, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(84, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 4 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(75, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 776#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 777#L166 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 842#L174 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 833#L130 assume 0 != main_~tmp~0; 778#L103 havoc test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 759#L639-1 [2019-12-07 12:09:36,170 INFO L796 eck$LassoCheckResult]: Loop: 759#L639-1 assume !false; 787#L455 assume test_~splverifierCounter~0 < 4; 788#L456 test_~tmp~7 := test_#t~nondet25;havoc test_#t~nondet25; 936#L464 assume !(0 != test_~tmp~7); 948#L464-1 test_~tmp___0~2 := test_#t~nondet26;havoc test_#t~nondet26; 949#L474 assume !(0 != test_~tmp___0~2); 961#L474-1 test_~tmp___2~0 := test_#t~nondet27;havoc test_#t~nondet27; 917#L484 assume 0 != test_~tmp___2~0; 856#L490-1 assume !(0 != ~pumpRunning~0); 844#L196 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 845#L280 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret3, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 946#L254-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret2, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 953#L228-3 assume !(0 == ~pumpRunning~0); 805#L203 havoc __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_#t~ret40, __utac_acc__Specification3_spec__1_#t~ret41, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 937#L555-5 __utac_acc__Specification3_spec__1_#t~ret39 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret39;havoc __utac_acc__Specification3_spec__1_#t~ret39; 881#L633 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 759#L639-1 [2019-12-07 12:09:36,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:09:36,170 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-12-07 12:09:36,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:09:36,171 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259164303] [2019-12-07 12:09:36,171 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:09:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:36,233 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:09:36,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:09:36,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1439331020, now seen corresponding path program 1 times [2019-12-07 12:09:36,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:09:36,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451331873] [2019-12-07 12:09:36,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:09:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:09:36,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:09:36,245 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451331873] [2019-12-07 12:09:36,245 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:09:36,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:09:36,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603070699] [2019-12-07 12:09:36,246 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 12:09:36,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:09:36,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 12:09:36,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 12:09:36,247 INFO L87 Difference]: Start difference. First operand 270 states and 396 transitions. cyclomatic complexity: 129 Second operand 3 states. [2019-12-07 12:09:36,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:09:36,327 INFO L93 Difference]: Finished difference Result 270 states and 373 transitions. [2019-12-07 12:09:36,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 12:09:36,328 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 270 states and 373 transitions. [2019-12-07 12:09:36,330 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 188 [2019-12-07 12:09:36,332 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 270 states to 270 states and 373 transitions. [2019-12-07 12:09:36,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 270 [2019-12-07 12:09:36,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 270 [2019-12-07 12:09:36,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 270 states and 373 transitions. [2019-12-07 12:09:36,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:09:36,333 INFO L688 BuchiCegarLoop]: Abstraction has 270 states and 373 transitions. [2019-12-07 12:09:36,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states and 373 transitions. [2019-12-07 12:09:36,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2019-12-07 12:09:36,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2019-12-07 12:09:36,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 373 transitions. [2019-12-07 12:09:36,342 INFO L711 BuchiCegarLoop]: Abstraction has 270 states and 373 transitions. [2019-12-07 12:09:36,342 INFO L591 BuchiCegarLoop]: Abstraction has 270 states and 373 transitions. [2019-12-07 12:09:36,342 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 12:09:36,342 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 270 states and 373 transitions. [2019-12-07 12:09:36,344 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 188 [2019-12-07 12:09:36,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:09:36,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:09:36,345 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 12:09:36,345 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:09:36,345 INFO L794 eck$LassoCheckResult]: Stem: 1471#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(77, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(101, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(116, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(104, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string34.base, #t~string34.offset, 1);call write~init~int(82, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(73, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(84, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 4 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(75, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1318#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1319#L166 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 1338#L174 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1417#L130 assume 0 != main_~tmp~0; 1324#L103 havoc test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1305#L639-1 [2019-12-07 12:09:36,345 INFO L796 eck$LassoCheckResult]: Loop: 1305#L639-1 assume !false; 1365#L455 assume test_~splverifierCounter~0 < 4; 1366#L456 test_~tmp~7 := test_#t~nondet25;havoc test_#t~nondet25; 1322#L464 assume !(0 != test_~tmp~7); 1321#L464-1 test_~tmp___0~2 := test_#t~nondet26;havoc test_#t~nondet26; 1323#L474 assume !(0 != test_~tmp___0~2); 1376#L474-1 test_~tmp___2~0 := test_#t~nondet27;havoc test_#t~nondet27; 1377#L484 assume 0 != test_~tmp___2~0; 1439#L490-1 assume !(0 != ~pumpRunning~0); 1427#L196 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1428#L280 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret3, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 1346#L254-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret2, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 1347#L228-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret23, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 1423#L595-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 1424#L600-3 isHighWaterLevel_#t~ret23 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret23;havoc isHighWaterLevel_#t~ret23; 1446#L399-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~0 := 0; 1431#L399-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 1410#L405-3 processEnvironment__wrappee__highWaterSensor_#t~ret2 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret2;havoc processEnvironment__wrappee__highWaterSensor_#t~ret2; 1331#L232-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 1332#L203 havoc __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_#t~ret40, __utac_acc__Specification3_spec__1_#t~ret41, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 1558#L555-5 __utac_acc__Specification3_spec__1_#t~ret39 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret39;havoc __utac_acc__Specification3_spec__1_#t~ret39; 1450#L633 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 1305#L639-1 [2019-12-07 12:09:36,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:09:36,345 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-12-07 12:09:36,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:09:36,346 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594602180] [2019-12-07 12:09:36,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:09:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:36,393 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:09:36,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:09:36,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1579572224, now seen corresponding path program 1 times [2019-12-07 12:09:36,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:09:36,394 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748540713] [2019-12-07 12:09:36,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:09:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:36,404 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:09:36,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:09:36,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1462089946, now seen corresponding path program 1 times [2019-12-07 12:09:36,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:09:36,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143820272] [2019-12-07 12:09:36,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:09:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:09:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:09:36,442 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143820272] [2019-12-07 12:09:36,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:09:36,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:09:36,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16847974] [2019-12-07 12:09:36,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:09:36,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 12:09:36,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:09:36,560 INFO L87 Difference]: Start difference. First operand 270 states and 373 transitions. cyclomatic complexity: 106 Second operand 5 states. [2019-12-07 12:09:36,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:09:36,711 INFO L93 Difference]: Finished difference Result 897 states and 1240 transitions. [2019-12-07 12:09:36,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 12:09:36,711 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 897 states and 1240 transitions. [2019-12-07 12:09:36,716 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 655 [2019-12-07 12:09:36,721 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 897 states to 897 states and 1240 transitions. [2019-12-07 12:09:36,721 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 897 [2019-12-07 12:09:36,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 897 [2019-12-07 12:09:36,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 897 states and 1240 transitions. [2019-12-07 12:09:36,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 12:09:36,723 INFO L688 BuchiCegarLoop]: Abstraction has 897 states and 1240 transitions. [2019-12-07 12:09:36,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states and 1240 transitions. [2019-12-07 12:09:36,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 534. [2019-12-07 12:09:36,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2019-12-07 12:09:36,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 728 transitions. [2019-12-07 12:09:36,737 INFO L711 BuchiCegarLoop]: Abstraction has 534 states and 728 transitions. [2019-12-07 12:09:36,737 INFO L591 BuchiCegarLoop]: Abstraction has 534 states and 728 transitions. [2019-12-07 12:09:36,737 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 12:09:36,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 534 states and 728 transitions. [2019-12-07 12:09:36,740 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 376 [2019-12-07 12:09:36,740 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 12:09:36,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 12:09:36,741 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-12-07 12:09:36,741 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:09:36,741 INFO L794 eck$LassoCheckResult]: Stem: 2681#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(110, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(102, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 3 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(80, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(117, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(109, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(112, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(32, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string22.base, #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 1 + #t~string22.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(77, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(101, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(116, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(104, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string34.base, #t~string34.offset, 1);call write~init~int(82, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(73, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(84, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 4 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(75, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 2503#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 2504#L166 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 2524#L174 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 2610#L130 assume 0 != main_~tmp~0; 2509#L103 havoc test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2510#L639-1 [2019-12-07 12:09:36,742 INFO L796 eck$LassoCheckResult]: Loop: 2510#L639-1 assume !false; 2964#L455 assume test_~splverifierCounter~0 < 4; 2965#L456 test_~tmp~7 := test_#t~nondet25;havoc test_#t~nondet25; 3016#L464 assume !(0 != test_~tmp~7); 3013#L464-1 test_~tmp___0~2 := test_#t~nondet26;havoc test_#t~nondet26; 3010#L474 assume !(0 != test_~tmp___0~2); 3007#L474-1 test_~tmp___2~0 := test_#t~nondet27;havoc test_#t~nondet27; 3004#L484 assume 0 != test_~tmp___2~0; 3001#L490-1 assume !(0 != ~pumpRunning~0); 2623#L196 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret4, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 2624#L280 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret3, processEnvironment__wrappee__methaneQuery_~tmp~2;havoc processEnvironment__wrappee__methaneQuery_~tmp~2; 2532#L254-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret2, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 2533#L228-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret23, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~5, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~5;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 2617#L595-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 2618#L600-3 isHighWaterLevel_#t~ret23 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~5 := isHighWaterLevel_#t~ret23;havoc isHighWaterLevel_#t~ret23; 2645#L399-9 assume 0 != isHighWaterLevel_~tmp~5;isHighWaterLevel_~tmp___0~0 := 0; 2627#L399-11 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 2602#L405-3 processEnvironment__wrappee__highWaterSensor_#t~ret2 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret2;havoc processEnvironment__wrappee__highWaterSensor_#t~ret2; 2517#L232-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 2518#L203 havoc __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_#t~ret40, __utac_acc__Specification3_spec__1_#t~ret41, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~7;havoc isMethaneLevelCritical_~retValue_acc~7;isMethaneLevelCritical_~retValue_acc~7 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~7; 2714#L555-5 __utac_acc__Specification3_spec__1_#t~ret39 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret39;havoc __utac_acc__Specification3_spec__1_#t~ret39; 2715#L633 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 2583#L587 __utac_acc__Specification3_spec__1_#t~ret40 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret40;havoc __utac_acc__Specification3_spec__1_#t~ret40; 2584#L639 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 2510#L639-1 [2019-12-07 12:09:36,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:09:36,742 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-12-07 12:09:36,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:09:36,743 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055481122] [2019-12-07 12:09:36,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:09:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:36,787 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:09:36,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:09:36,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1845464786, now seen corresponding path program 1 times [2019-12-07 12:09:36,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:09:36,788 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142313738] [2019-12-07 12:09:36,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:09:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:36,799 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:09:36,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:09:36,799 INFO L82 PathProgramCache]: Analyzing trace with hash -614119304, now seen corresponding path program 1 times [2019-12-07 12:09:36,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:09:36,800 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489476718] [2019-12-07 12:09:36,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:09:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:09:36,853 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:09:57,923 WARN L192 SmtUtils]: Spent 20.96 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-12-07 12:10:09,975 WARN L192 SmtUtils]: Spent 12.05 s on a formula simplification that was a NOOP. DAG size: 400 [2019-12-07 12:10:10,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 12:10:10 BoogieIcfgContainer [2019-12-07 12:10:10,032 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 12:10:10,033 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:10:10,033 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:10:10,033 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:10:10,033 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:09:35" (3/4) ... [2019-12-07 12:10:10,035 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 12:10:10,073 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_530f7068-8bf3-4501-9d44-9c5964a9c496/bin/uautomizer/witness.graphml [2019-12-07 12:10:10,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:10:10,074 INFO L168 Benchmark]: Toolchain (without parser) took 35701.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 934.0 MB in the beginning and 893.8 MB in the end (delta: 40.2 MB). Peak memory consumption was 182.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:10:10,075 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:10:10,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 71.3 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -119.8 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:10:10,075 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:10:10,076 INFO L168 Benchmark]: Boogie Preprocessor took 44.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:10:10,076 INFO L168 Benchmark]: RCFGBuilder took 635.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 950.1 MB in the end (delta: 93.0 MB). Peak memory consumption was 93.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:10:10,076 INFO L168 Benchmark]: BuchiAutomizer took 34580.99 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 950.1 MB in the beginning and 896.3 MB in the end (delta: 53.8 MB). Peak memory consumption was 214.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:10:10,076 INFO L168 Benchmark]: Witness Printer took 40.70 ms. Allocated memory is still 1.2 GB. Free memory was 896.3 MB in the beginning and 893.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:10:10,078 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 341.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 71.3 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -119.8 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 635.53 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 950.1 MB in the end (delta: 93.0 MB). Peak memory consumption was 93.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 34580.99 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 950.1 MB in the beginning and 896.3 MB in the end (delta: 53.8 MB). Peak memory consumption was 214.9 MB. Max. memory is 11.5 GB. * Witness Printer took 40.70 ms. Allocated memory is still 1.2 GB. Free memory was 896.3 MB in the beginning and 893.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 534 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 34.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 33.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 582 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 534 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 949 SDtfs, 2524 SDslu, 2501 SDs, 0 SdLazy, 244 SolverSat, 97 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 454]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6732} State at position 1 is {NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f986eda=0, NULL=0, NULL=6742, NULL=0, NULL=6732, NULL=6738, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@708ef8a4=0, NULL=0, NULL=6747, methaneLevelCritical=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@82f5381=0, tmp=0, tmp___1=0, NULL=6746, NULL=6757, cleanupTimeShifts=4, NULL=6736, tmp=0, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=6741, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=6734, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2933edc6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@180432d3=62, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b50b9c5=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e358896=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34556492=0, NULL=0, \result=1, NULL=6743, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@232c97f=0, NULL=0, NULL=0, retValue_acc=1, NULL=0, NULL=0, tmp___0=0, tmp=1, NULL=6754, NULL=6756, tmp=0, head=0, NULL=6753, NULL=6739, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60359855=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ef26e53=0, tmp=0, NULL=0, retValue_acc=0, NULL=0, NULL=6745, NULL=6744, NULL=6733, NULL=6748, tmp___0=0, NULL=0, NULL=0, NULL=0, tmp=0, NULL=6735, tmp___0=1, NULL=0, systemActive=1, NULL=6751, \result=1, NULL=0, NULL=0, retValue_acc=0, NULL=6755, \result=0, NULL=0, NULL=6752, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ee3b404=0, NULL=0, NULL=0, NULL=6750, retValue_acc=1, tmp___2=62, splverifierCounter=0, \result=0, NULL=6737, tmp___1=0, NULL=0, NULL=6749, NULL=0, NULL=6740} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L188] int pumpRunning = 0; [L189] int systemActive = 1; [L512] int waterLevel = 1; [L513] int methaneLevelCritical = 0; [L827] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L445] int splverifierCounter ; [L446] int tmp ; [L447] int tmp___0 ; [L448] int tmp___1 ; [L449] int tmp___2 ; [L452] splverifierCounter = 0 Loop: [L454] COND TRUE 1 [L456] COND TRUE splverifierCounter < 4 [L462] tmp = __VERIFIER_nondet_int() [L464] COND FALSE !(\read(tmp)) [L472] tmp___0 = __VERIFIER_nondet_int() [L474] COND FALSE !(\read(tmp___0)) [L482] tmp___2 = __VERIFIER_nondet_int() [L484] COND TRUE \read(tmp___2) [L196] COND FALSE !(\read(pumpRunning)) [L203] COND TRUE \read(systemActive) [L277] int tmp ; [L280] COND FALSE !(\read(pumpRunning)) [L251] int tmp ; [L254] COND FALSE !(\read(pumpRunning)) [L225] int tmp ; [L228] COND TRUE ! pumpRunning [L391] int retValue_acc ; [L392] int tmp ; [L393] int tmp___0 ; [L592] int retValue_acc ; [L595] COND TRUE waterLevel < 2 [L596] retValue_acc = 1 [L597] return (retValue_acc); [L397] tmp = isHighWaterSensorDry() [L399] COND TRUE \read(tmp) [L400] tmp___0 = 0 [L404] retValue_acc = tmp___0 [L405] return (retValue_acc); [L230] tmp = isHighWaterLevel() [L232] COND FALSE !(\read(tmp)) [L625] int tmp ; [L626] int tmp___0 ; [L627] int tmp___1 ; [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); [L631] tmp = isMethaneLevelCritical() [L633] COND FALSE !(\read(tmp)) [L583] int retValue_acc ; [L586] retValue_acc = waterLevel [L587] return (retValue_acc); [L637] tmp___0 = getWaterLevel() [L639] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...